I think it's just the standard HBT camo combat uniform of the period, used primarily, but not exclusively, by the Marines.
A tan base with a dark green and a red brown should work fine.
EDIT~
Ah yes, looking at the links that philip posted, that would do
it, though there's also that lighter brown/OD splotch, and you also
have the option of the winter reverse side with the reddish-purple
base..